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Implemented two new symbol handling functions:

Browse Source 
o  cf_define_symbol() -- it assigns a meaning to a symbol, bailing
     out if it already has one.
  o  cf_find_symbol() -- finds symbol by name and creates it if not found.

Also modified filter/config.Y to make use of the first function.
This commit is contained in:
Martin Mares
1999-05-17 20:06:19 +00:00
parent b23c5e0ff4
commit 4107df1d1b
3 changed files with 23 additions and 8 deletions
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11
filter/config.Y
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@@ -40,9 +40,7 @@ CF_GRAMMAR
CF_ADDTO(conf, filter_def)
filter_def:
FILTER SYM filter_body {
if ($2->class != SYM_VOID) cf_error("Symbol already defined" );
$2->class = SYM_FILTER;
$2->def = $3;
cf_define_symbol($2, SYM_FILTER, $3);
$3->name = $2->name;
printf( "We have new filter defined (%s)\n", $2->name )
}
@@ -67,8 +65,7 @@ type:
decls: /* EMPTY */
| type SYM ';' decls {
if ($2->class != SYM_VOID) cf_error("Symbol already defined, can not use as variable\n" );
$2->class = SYM_VARIABLE | $1;
cf_define_symbol($2, SYM_VARIABLE | $1, NULL);
printf( "New variable %s type %x\n", $2->name, $1 );
}
;
@@ -104,9 +101,7 @@ CF_ADDTO(conf, function_def)
function_def:
FUNCTION SYM function_params function_body {
extern struct f_inst *startup_func;
if ($2->class != SYM_VOID) cf_error("Symbol already defined" );
$2->class = SYM_FUNCTION;
$2->def = $4;
cf_define_symbol($2, SYM_FUNCTION, $4);
if (!strcasecmp($2->name, "startup"))
startup_func = $4;
printf("Hmm, we've got one function here - %s\n", $2->name);